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arXiv 1306.1498math.AGmath.CVmath.DG
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超Kahler流形上的遍历复结构

Ergodic complex structures on hyperkahler manifolds

Misha Verbitsky

摘要:

设$M$是紧致复流形.相应的Teichmuller空间$\Teich$是一个空间的所有复结构上的$M$的行动的同位素。群$Γ$的连通分支的同构群(称为映射类群)以自然的方式作用于$\Teich$。遍历复结构是在$\Teich$中具有密集$Γ$轨道的复结构.设$M$是复维数为$\geq 2$的复环面或具有$b_2>3$的超Kahler流形.证明了$M$是遍历的,除非$M$具有最大Picard秩(存在可数个这样的$M$).这是用来证明所有的超卡勒流形是小林非双曲的。

英文摘要:

Let $M$ be a compact complex manifold. The corresponding Teichmuller space $\Teich$ is a space of all complex structures on $M$ up to the action of the group of isotopies. The group $Γ$ of connected components of the diffeomorphism group (known as the mapping class group) acts on $\Teich$ in a natural way. An ergodic complex structure is the one with a $Γ$-orbit dense in $\Teich$. Let $M$ be a complex torus of complex dimension $\geq 2$ or a hyperkahler manifold with $b_2>3$. We prove that $M$ is ergodic, unless $M$ has maximal Picard rank (there is a countable number of such $M$). This is used to show that all hyperkahler manifolds are Kobayashi non-hyperbolic.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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